The maximum heights specified for buildings in Section 1145.04 shall not apply to:
   (a)    Public facilities, churches, and schools, provided that these are located on the first floor of such buildings and comprise fifty percent (50%) or more of the floor area of such buildings. For each one foot by which the height of such building exceeds the maximum height otherwise permitted in the district, its required side and rear yard setbacks shall be increased by an additional one and one-half feet.
   (b)    Flagpoles, radio or television antenna, transmission towers or cables, spires cupolas, chimneys, elevator or stair bulkheads, penthouses, parapets or railings, water tanks or cooling towers, silos and similar structures for bulk storage, grain elevators, mineral extraction and processing structures, or any similar structures, provided that such structures in their aggregate coverage occupy no more than twenty-five percent (25%) of the lot coverage of the principal and accessory buildings and shall not be less than twenty-five feet from each lot line.
      (Ord. 1985-40. Passed 8-6-85.)